Wringer



Dec. 17, 1940. w. L. KAUFFMAN, 2D 2,225,499

A TTORNEYS.

Dec. 17, 1940 W. L. KAUFFMAN, 2D

WRINGER Filed March 1'7, 1937 2 Sheets-Sheet 2 ATTORNEYS.

Patented Dec. 11, 1940 UNITED STATES PATENT OFFICE Lovell Manufacturing Company, Erle, Pa., a corporation of Pennsylvania Application March 17,

8 Claims.

Power wringers are commonly provided with a release device and some meansfor resetting the pressure on the wringer for further operations. The present invention is designed to improve and 5 simplify release and resetting mechanisms for wringers. Features and details of the invention will appear from the specincation and claims.

Preferred embodiments of the invention are illustrated in the accompanying drawings as follows:

Fig. 1 shows a front elevation of the wringer partly in section.

Fig. 2 a plan view of the wringer.

Fig. 3 a central vertical section on the line 2-:3

15 in Fig. 2.

Fig. 4 an elevation of the releasing and resetting mechanisms in released position.

Fig. 5 a perspective view of one of the links of the releasing mechanism.

Fig. 6 a plan view of the releasing rod in released position.

Fig. 'l a front elevation partly in section of an alternative construction.

Fig. 8 a plan view of the modiilcation shown in Fig. '7.

Fig. 9 an elevation showing the parts in released position.

Fig. 10 an elevation of an end of a wringer so showing a further modification.

In the structures illustrated in Figs. 1 to 9 the following parts are in common:

I marks a base of the wrlnger, 2 and 3 side stiles. A lower roll l has a shaft l, and an upper roll 6 has a shaft 1. The shaft I is journaled in bearings I. 'I'he bearings l are mounted on brackets 2 in the side stiles. 'Ihe upper shaft 'l is `iournaled in bearings l0 slidingly mounted in the upper ends of the side s'tiles. A spring I l rests o on the bearings l0 and is adjusted by a screw I2 operating in a fitting Il on a top bar I4.

The top bar is detachably secured at one end by interlocking shoulders l5 and It struck up from the end of the top bar and the side stile s respectively.

'I'he opposite or release end of the top bar is provided with a resetting and release device. This comprises a toggle lever i1, the toggle lever having a link Il which is of channel form and is pivotally secured tothe top bar by a bolt Il extending through the side walls of the link and the top bar. A link 2l of the toggle lever is also of channel form and is pivotally connected with the link il by a pin 2|. Thesides of the g5 link 20 straddle the side stile 2, and the link is 1937, Serial No. 131,839

(Cl. l68-263) plvotally connected to the side stile by pin 22. When the toggle lever is depressed it forces the release end of the top bar down into set position and puts pressure on the spring. The screw may adjust the amount of pressure but the top bar is normally used for ordinary resetting. The pivots of the toggle lever are out of alignment when in set position as clearly shown in Figs. l to 9 so that the toggle lever is in an unstable condition. that is to say, unless restrained or held in its set position the arrangement of these pivots will result in the breaking of the toggle and the release of the top bar.

The link il has a projection 24 with a cam surface. This cam surface engages a beveled end 2l on a pin 25a. The pin 25a is slidingly mounted in an ear 28 secured to the top bar. The upper end of the pin 25a has a beveled or cone surface 21 which engages an opposing cone surface 22 on an operating bar 29. These cone surfaces are yieldingly held in alignment by coil springs l0. the ends of which engage the pin 25a and the rod 22. The rod 29 has its opposite end beveled at Il and the beveled end 3i engages a beveled .end 22 of a rod 23. The rod 33 is slidingly mounted in an ear 23a on the top bar. The rods 29 and 33 are yieldingly held in alignment by a spring 34 which overlaps these rods at each side of the beveled surfaces 2l and 32. The end of the rod 33 is secured to a lever 35. The lever Il is pivotally mounted by a pin 36 on an ear 31 arranged on the end of the top bar. The opposite end of the lever 25 is secured to the rod 38, and is slidingly mounted in an ear 39 extending from the top bar. The rod 38 is provided with a beveled end 32a which engages a beveled end IU of an operating rod 4|. The ends of the rods ll and il are yieldingly held in alignment by a springv 42 overlapping the ends of these rods. The opposite end of the rod ll has a beveled end 43 engaging a beveled end u of a rod Ma. The rod a is fixed in an ear l5 extending from the top bar. A spring Il overlaps the ends of the rods a and 4l, holding the beveled ends in register.

In the operation of the device should the rod 2l be struck it moves the beveled surfaces 22 or ll or both out of register with the opposing beveled surface and this permits the rod 25a to retract under the camming action of the pro- `iection 24 acting through the outward pressure these interlocking shoulders also release, thus giving full release to the rolls. Should the rod Il be struck the beveled surfaces 4I or 4I. or both 'beveled surfaces. may be moved out of register with the beveled surfaces engaged thereby and this permits of an endwise movement of the rod Il and this movement is communicated through the lever Il to the rod 33 which permits the retracting movement of the rod or bar 3l and rod lla so as to permit a release movement. After a release it is only necessary to engage the interlocking shoulders Il and It and to force down the toggle lever to set position. During this downward movement of the toggle lever it is necessary to move either the operating bar 2| or the bar Il so as to permit a retracting movement of the rod lla to permit the projecting end 24 to move into position. The conical end Il engaging the upper surface of the projection retracts the rod Ila, permitting of this upward movement.

In the construction shown in Figs. 7, 8 and 9, the parts are similar except a retaining bolt 41 engages the projection 2l. 'I'his bolt is slidingly mounted in an ear 4l arranged on the frame. 'Ihe bolt has a reduced shank 41a. A spring a is arranged in the ear around the shank and operates against the shoulder Il, at the end of the bolt. The spring therefore yieldingly forces the bolt into position to restrain the link Il. 'I'he end of the shank 41a is provided with a ferrule ll in which a cord il is secured. 'Ihe cord Il extends around a grooved lever l2. This grooved lever is pivoted on a pin I3 which is mounted in an ear 5l on the end of the cross bar. The cord extends around the lever and is secured by a ferrule B8 with a screw Il. The screw operates in an ear 5l. In operation when it is desired to effect a release the cord Il is struck on either side of the wringer and this deflection of the cBrd retracts the bolt or latch 41 thus permitting a release of the toggle lever and the release of the pressure.

In Fig. l the toggle lever pivots are in alignment to form a stable relation so that when the toggle lever is set it remains in set position until moved past the neutral or central point of these pivots to break the toggle. In this structure the link Il has the projection l with a cam surface Il. A cam block 80 engages the camming surface Il. The cam block is carried by a pin Il similar to the pin or shank 41a, and the cord Il operates in a manner similar to that shown in Figs. 7 to 9. When the cord is deected it retracts the cam block Il and this operating on the projection IB forces the toggle lever outwardly so as to carry the pivots past the neutral point, thus breaking the toggle lever and effecting a release.

What I claim as new is:

l. In a wringer, the combination of a frame; rolls mounted in the frame; a pressure means exerting pressure on the rolls; 4release devices operating on the pressure means for releasing the pressure thereof comprising an operating bar exin the frame. a pressure means exerting pressure on the rolls. and release devices operating on the pressure means for releasing the pressure thereoi comprising: the combination with said release devices of a trip mechanism having a contractible l mechanism operating to eii'ect the operation of the release devices through its contraction. said tripmechanismhavinganoperatingbarhavinga beveled end, and a member raving a beveled end opposing the beveled end of the bar. and a yieldable means retaining the bar and member in register and permitting the oil-setting of the beveled end of the bar operating to eilect a release of the release devices.

3. In a wringer having a frame, rolls mounted la in the frame, a pressure means exerting pressure on the rolls, and release devices operating on the pressure means for releasing the pressure thereof the combination with said release devices of an operating bar normally restrained from axial motion having a beveled end: an endwise movable tripping member, said member having a beveled end opposing the beveled end of the operating bar; and yielding means retaining said bar and member in register, the off-setting of 2s the beveled ends operating to effect a release of the release devices.

4. In a wringer having a frame comprising a base and side stiles, a releasable top bar mounted on the stiles, rolls mounted in the frame, a pressure means exerting pressure on the rolls, and release devices; the combination with the release devices thereof, a normally stationary operating bar normally restrained from axial motion mounted on the top bar and having a beveled gg end; an endwise movable tripping member, said member having a beveled end opposing the beveled end of the operating bar; and yielding means retaining said bar and member in register, the off-setting of the beveled ends operating to effect a release of the release device.

5. In a wringer having a frame, rolls mounted in the frame, a pressure means exerting pressure on the rolls, and release devices for releasing the pressure of the pressure means; the combination with said release devices of a contractible means extending lengthwise of the wringer at one side thereof, said contractible means operating to effect, through the contraction thereof the release devices; and a means mounted on the opposite side of the wringer operatively connected with the contractible means to eifect a release.

6. In a wringer having a frame, rolls mounted in the frame, a pressure means exerting pressure on the rolls, release devices for releasing the u pressure of the pressure means; the combination with said release devices of a contractible means contracting through side deflection and extending lengthwise of the wringer at one side thereof, said contractible means actuating through the contraction thereof the release devices; and means mounted on the opposite side of the wringer operatively connected with the contractible means to eil'ect a release.

7. In a wringer having a frame, rolls mounted in the frame, a pressure means exerting pressure on the rolls, and release devices for releasing the pressure of the pressure means; the combination with said release devices of a contractible means extending lengthwise of the wringer at one side thereof, said contractible means actuating the release device through the contraction of the means; and a contractible means mounted on the opposite side of the wringer operatively connected with the contractible means to eifect a release.

8. In a wringer having a. wringer frame, rolls mounted in the frame, pressure means exerting pressure on the rolls, and release devices releasing the pressure of the pressure means the combination with said release devices of a. trip mechanism comprising a. cord extending lengthwise of the wringer frame, said cord being contractible by deecton of the cord, said cord operating to effect the operation of the release device through the contraction of the cord; and an auxiliary card, said cords being on opposite sides of the Wringer and operatively connected.

WALTER L. KAUFFMAN, 1I. 

